Radiator cap



Aug. 17 1926. 1,596,379

R. l. SHORT v RADIATOR CAP h Filed Nov. 2. 1921 2 Sheets-Sheet 1 'IN VEN TOR EUEL 8H0??? ATTORNEY Aug. 17 1926. 1,596Q379 R. 1. SHORT -RADIATOR CAP Filed Nov. 2. 1921 2 Sheets She et 2 Patented Aug. 17, 1926.

came STATES 1,596,379 PATENT (OFFICE.

'RUEL I. SHORT, DE LOS ANGELES, CALIFORNIA, ASSIGNOB. 'ronssnivnnn ooRronA- TION, or Los ANGELES, CALIFORNIA, A CORPORATION or CALIFORNIA.

RADIATOR CAP.

Application filed November 2, 1921. Serial No. 512,250.

This invention relates to an automobile radiator and particularly pertains to a radiator cap thereof.

It is the particular object of the present invention to provide a radiator cap which may be permanently afiixed to the filling spout of an automobile radiator and which is so designed as to permit the cap to be opened and closed without necessitating its removal from its permanent position, the cap being further fitted with means for permanently securing an indicator in position thereon. p

The. present invention contemplates the use of a fixed base providing means for securing it in position upon the spout of a radiator and to which base a rotatable cap member is secured, said capbeing designed to provide a filling opening for the radiator when desired although at normal times the radiator spout is closed thereby, the cap being furtherfitted with means for permanently holding a gauge or indicator thereon.

The invention is illustrated, by way. of .example,'in the accompanying drawingsin which: 7

Figure l is a view in elevation showing the application ,of the present invention.

Fig. 2. is a view in plan showing the radiator cap with which the present invention is'concerned.

Fig. 3 is a view in central, Vertical section through the cap disclosing its details of construction and its application to a radiator spout.

Fig. 4 is a view in transverse section through the radiator cap as shown on the line 44 of Fig. 1. i

V Fig. 5. .is a schematic view of another form of the inventionas seen in perspective with the parts separated and broken away.

Referring more particularly to the drawings, 10 indicates the upper portion of an automobile radiator. Formed at the top of this radiator is a filling mouth or spout 11. This spout is preferably cylindrical and receives the base 12 of a radiator cap 13. The base constitutes an annular member 14 having a channel 15 formed in its lower face. This channel'receives theupp'er end of the .spout 11. The inner 'wall 16.0f the channel 15 is formed with a plurality of bosses 17 which have theirilongitudinal axes ex-" tended obliquely to the vertical center of the cap. These bosses, are threadedto. receive set screws 18.: The 'screws'will therefore project outwardly. and upwardly. through the wall 16 and may be forced against the inner face of the radiator spout 11 to fasten the ring 14 to the spout. In order to increase the binding. action it is preferable to point the ends of the screws so they may have atendency tobecome imbedded in the metal of the spout. As shown in Fig. 4, three of thesejlock screws areprovided although moremight ,beused if desired.

The radiator cap comprises an inner fixed portion 19 andan outer rotatable portion 20. Itis to be understood that the cap may be of any desired design or configuration although in the present instance the cap is shown. as being frusto-conical. The fixed portion of the cap comprising an annular ring 21 which is threaded andsets over a complementary portion 22 of the base ring 14. A conical shell is formed as a continuation of this ring and is disposed there above. This shell has an upper end wall 23 for a purpose which will be hereinafter described. A filling opening 24 is formed through the side of the shell as clearly shown in Figs. 2 and 3. The fixed shell member 19 is permanently secured in position by pins 25 which pass through the threaded portions of the shell and the base.

The outer cap member 20 conforms to the inner cap 19 as shown in Fig. 3. This cap is also formed with an opening 24 which agrees in dimensions with the opening in thefixed cap member and which openings may be brought to register when desired. The outer cap has an upper end wall 26 fitting over the end wall 23 of the inner cap. 7

A pivot pin 27 extends downwardly through central aligned openings in the two end walls 23 and 26. .A. set screw 28 secures the outer cap section to the pin 27 whileit is free to rotate relative to the inner cap section. It will thus be evident'that by rotation of the outer cap20 its opening may be caused to register with the opening of the inner cap and that by further rotation of the inner cap may be entirely covered by the outer cap and the outer opening entirely closed by the wall of the inner cap. Ini'order to yieldably hold the two cap sections in close relation to each other'a spring 29 is disposed around the pin 27 and beneath the wall 23 of the inner cap section. A nut 30 is threaded on to the pin and presses upwardly against the spring to produce any desired tension thereon. The outer Wall of this nut is downwardly taper- .ed .to permit aliquid to be easilvpoured through'thelfilling opening and into the spout. A set screw 31 fixes the nut 1n its adjusted position relative to pm 27.. The upper end of the pin 27 is formed with a head 32 which is heldiagainstthe end of the outer cap section 20 by pin 27. A packing washer 23d is interposed loetween the flange and'i'the end oft'he cap to prevent leakage. in oneformnofthe invention as shownin Figs. 1 to 4 inclusive, 1a ino touneter is formed 'on;the end of the pin although it willibeunderstoodthat various other devices mightbe substituted therefor if desired. The :cap .m'ay be rotate'd by two aligned handles oastfiintegralwith the outer cap portion to facilitate .in its rotation.

Refenenoe ibe'ing had to 5 -o f the drawing- ..-it will be :noted that the =mem-ber '19 is not threaded son ito -t-he base but is formed with lugsB-G. These lugs extend inwardly from diametrically .opposite sides of the portion .21 :and :are formed with an upper inclined face co-operating with the lower face of lugs .37 zextending from-the portions 22ofihefibase. Attention is also directed-to the fact that the Ylower margin a'l edge of the reap member is inwardly -tapered as indicated at 38. This taper setting over a portion oft'hehba se 14.. Bythis means the cap nnay be sealed ngainst the base and will prcnient ieakageofwater int-he same manneras brought about by theIthread-used in .the afornrzof-the invention shown Fig. Inzthe form .ofz'thednvention shown in Figs. 21 to 3 inclusivea sui ta ble'gauge is formed .integnatl'with IIhe-TpinQ Z. This-may not always'be desireduand when not required the pin indicated infl ligr :5 might be used without .departing 'from the spirit of the in- .vention.

.In the operation :of :Lthe :present invention the :cap st'rnetureis-applied fto a'r-adiator by ffirst,positioningfthe ringile over and around the 1no-u-tl1:.o.f the spout 11:.afterw-hich it is clamped in place Joy the screws 18. The inner :cap :portion. 19 is "then screwed 'on to :the-threadeddip of the base flflafter it is aloekedin position by thepins The'outer rap -:me1nber 20 is then mounted over the member 1:9 and the pivot :111:27 is passed downwardly through ithe' opening in the end -wal l 28- ofzthe inner cap. It will doe .under- --.stoodi-th-atit ispreferable to secure-the stein to the outer cap "by its flange 32 before =,-placin g the member :in positm A the pin is passed downwardly through the -struc-ture-.the spring .29'and the nut 30 may be ,p'la-ced thereon. The nut ethen be z'tiglr-tened through the registering openings The deviceiis'now'ready forzusenn'd'the openings -may; be alternately -.brought into removal.

or out'of register by rotationofrthe outer cap section.

it will thus be seen that the present invention provides means forpermanentlypositioning a radiator cap over its spout and for holding a gauge in placeand against l Vhile I have shown the preferred form of any invent-ion as now known to me it will be understood that various changes in the combination, I construction, and arrangement of the parts may bezmade :by 'thosecshilled in the art without departing'i'nom theispirit of the inventi-ronias fclillllled.

Having thus :descrrbedxmy invention, what I claim and desire to secure vby Letters Patent isl. n. cap for the filling spout :ofzan automobile radiator vcomprisin-g an :apertured member having :a :fl'ange extending down within the spout oftth'e radiatoig-nreanson said flange to permanently SB'C/HPBJSfli Gl .memher to the spout and a rotatable member permanently *fixed upon said apertured member for :covering :and :nncovering the said aperture, the"contacting faces of said members being inclined and sprrngrineans for pressing said; membierssftogether to storm a tight closure.

.2. A radiator reap oomprisingafibaseiportion adapted toibe mounted upon thehspout of a radiator,:a permanent oaip lnetnberise cured upon the base portion :nnd. formed with a filling opening therein, :a flange on said member extending downwardly within the spout of the radiator, means on .said flange to permanently secure said member to the spout, and a seeondaryeapinenrber permanently connected no the first-mentioned cap member and :rotatable with :respect thereto, said secondary cap member being adapted .to -.close the mop ening the first-mentioned icap inember when in one position :and to expose the same when in another position, the contacting faces of said members being inclined, :and spring means for pressingnsa id members together to form a tight closure V 3. In combination :with the spout iof an automobile radiator, a n annular I base member, a flange on :said anember extending downwardly 'within the spout, means"for fastening the flange in position within t he radiator spout, a radiator cap "fixed upon the base member: and I having a til-ling ope-ning through .the wal-l th'ereof and a" closure plate .rotata-bly disposed np'on said cap and acting,

openingtherein, and, when in an'ot'herj position of rotation, to expose said 'opening, I the '-contacting faces of sai d-members bein g ine *elined, .and springmeans for pressing said 7 members together: to form a tight closure.

:4. A radiate-reap comprising-an annu 'rar base 'member formed-with a channeland when in one posi-tion,"to -c1ose the 7 into which the lip of a radiator spout may project means carried by the inner Wall of the channel for clamping it in position over said spout, a conical radiator cap fixed upon said base and substantially closing the mouth of the spout, said cap having a filling opening through the Wall thereof, a second rotatable cap conforming to the outer surface of the fixed cap and having an opening through its Wall which may be brought to register with the first mentioned opening, and pivot means for securing said second cap in its rotatable position upon the fixed cap.

5. A radiator cap comprising an annular base member formed with a channel and into which the lip of a radiator spout may project, means carried by the inner Wall of the channel for clamping it in position over said spout, a conical radiator cap fixed upon said base and substantially closing the mouth of the spout, said cap having a filling opening through the Wall thereof, a second rotatable cap conforming to the outer surface of the fixed cap and having an opening through its Wall which may be brought to register With the first mentioned opening, and pivot means for securing said second cap in its rotatable position upon the fixed cap and means for maintaining a tight joint between the adjacent surfaces of the tWo caps. 1

RUEL I. SHORT. 

